Science & Technology
Insights into the dynamic ultrastructure of the heart
What happens below the cellular level when the heart contracts and relaxes has long been unexplored. Thanks to new ultra-high-resolution electron microscopy techniques, scientists can now watch the heart beating — almost at a molecular level.
Melting ice caps may not shut down ocean current
Most simulations of our climate’s future may be overly sensitive to Arctic ice melt as a cause of abrupt changes in ocean circulation, according to new research.
Producing ammonia through electrochemical processes could reduce carbon dioxide emissions
Ammonia is commonly used in fertilizer because it has the highest nitrogen content of commercial fertilizers, making it essential for crop production. However, two carbon dioxide molecules are made for every molecule of ammonia produced, contributing t…
From computer to benchtop: Researchers find clues to new mechanisms for coronaviruses infections
A group of bat viruses related to SARS-CoV-2 can also infect human cells but uses a different and unknown entryway. While researchers are still honing in on how these viruses infect cells, the findings could help in the development of new vaccines that…
Dynamic rivers contributed to Amazon’s rich bird diversity
One of the most contentious questions in evolutionary biology is, how did the Amazon become so rich in species? A new study focused on birds examines how the movements of rivers in the Amazon have contributed to that area’s exceptional biological diver…
Differences between the Moon’s near and far sides linked to colossal ancient impact
New research shows how the impact that created the Moon’s South Pole — Aitken basin is linked to the stark contrast in composition and appearance between the two sides of the Moon.
What shapes gut microbiomes of Alaska’s brown bears? Location, location, location
A recent study of Alaskan brown bears (Ursus arctos) finds that there is significant variation in the gut microbiome of bear populations, depending on where the bears live. The finding advances our understanding of the relationship between wildlife hab…
Air pollution responsible for 180,000 excess deaths in tropical cities
Around 180,000 avoidable deaths over 14 years in fast-growing tropical cities were caused by a rapid rise in emerging air pollution, a study has revealed.
Key to success of drug-resistant bacteria
Researchers have uncovered how Gram-negative bacteria — which cause a variety of drug-resistant infections — build their protective outer layer, which could lead to more effective treatments.
How T cell-derived interleukin-22 promotes antibacterial defense of colonic crypts
Intestinal epithelial cells line the inner wall of the gut, creating a barrier to dangerous bacteria like enteropathogenic E. coli that seek to attach and efface that barrier, causing diarrhea. Such pathogens pose significant risks to human health and …
Toward high-powered telecommunication systems
Researchers have developed a fully integrated high-power laser on a lithium niobate chip, paving the way for high-powered telecommunication systems, fully integrated spectrometers, optical remote sensing, and efficient frequency conversion for quantum …
Faces of dominance: Why the faces of women and men are perceived differently by liberals and conservatives
A new study finds that liberals and conservatives differ in how they perceive dominance in women, which may influence their likelihood to vote them into political office.
Better, faster, energy efficient predictions
Researchers have combined reinforcement learning with numerical methods to compute turbulent flows, one of the most complex processes in engineering. The researchers also used machine learning algorithms to accelerate predictions in simulations of comp…
CRISPR gene editing reveals biological mechanism behind common blood disorder
Researchers have used CRISPR gene editing — a type of ‘molecular scissors’ — to understand how deletions in one area of the genome can affect the expression of nearby genes. The work will help researchers investigate new therapeutic approaches for on…